Translate this page to any language by choosing a language in the box below.

OSHA Enforcement Guidance Memos

OSHA Enforcement Guidance Memos

OSHA Standard Interpretations are letters or memos written in response to public inquiries or field office inquiries regarding how some aspect of or terminology in an OSHA standard or regulation is to be interpreted and enforced by the Agency. These letters provide guidance to clarify the application of an established OSHA standard, policy, or procedure, but they may not, in themselves, establish or revise OSHA policy or procedure or interpret the OSH Act.

They must specifically cite the source policy or procedure document they interpret. Also see the page on OSHA Enforcement Guidance memos.

In using these memos in your own circumstances, carefully note how closely your situation matches those described in the memo.

• 1910 - Table of Contents
• 1910.1 - Purpose and scope.
• 1910.5 - Applicability of standards.
• 1910.6 - Incorporation by reference.
• 1910.7 - Definition and requirements for a nationally recognized testing laboratory.
• 1910 Subpart B - Adoption and Extension of Established Federal Standards
• 1910.11 - Scope and purpose.
• 1910.12 - Construction work.
• 1910.16 - Longshoring and marine terminals.
• 1910 Subpart D - Walking-Working Surfaces
• 1910.21 - Scope and definitions.
• 1910.22 - General requirements.
• 1910.23 - Ladders.
• 1910.24 - Step bolts and manhole steps.
• 1910.25 - Stairways.
• 1910.27 - Scaffolds and rope descent systems.
• 1910.28 - Duty to have fall protection and falling object protection.
• 1910.29 - Fall protection systems and falling object protection-criteria and practices.
• 1910.30 - Training requirements.
• 1910 Subpart E - Exit Routes and Emergency Planning
• 1910.34 - Coverage and definitions.
• 1910.35 - Compliance with alternate exit-route codes.
• 1910.36 - Design and construction requirements for exit routes.
• 1910.37 - Maintenance, safeguards, and operational features for exit routes.
• 1910.38 - Emergency action plans.
• 1910.39 - Fire prevention plans.
• 1910.66 - Powered platforms for building maintenance.
• 1910.66 App C - Reserved
• 1910.67 - Vehicle-mounted elevating and rotating work platforms.
• 1910.68 - Manlifts.
• 1910.94 - Ventilation.
• 1910.95 - Occupational noise exposure.
• 1910.95 App C - Audiometric measuring instruments
• 1910.95 App D - Audiometric test rooms
• 1910.95 App F - Calculations and application of age corrections to audiograms
• 1910.97 - Nonionizing radiation.
• 1910 Subpart H - Authority for 1910 Subpart H
• 1910.101 - Compressed gases (general requirements).
• 1910.103 - Hydrogen.
• 1910.104 - Oxygen.
• 1910.106 - Flammable liquids.
• 1910.107 - Spray finishing using flammable and combustible materials.
• 1910.108 - Reserved
• 1910.109 - Explosives and blasting agents.
• 1910.110 - Storage and handling of liquefied petroleum gases.
• 1910.111 - Storage and handling of anhydrous ammonia.
• 1910.119 - Process safety management of highly hazardous chemicals.
• 1910.119 App A - List of Highly Hazardous Chemicals, Toxics and Reactives (Mandatory).
• 1910.120 - Hazardous waste operations and emergency response.
• 1910.123 - Dipping and coating operations: Coverage and definitions
• 1910.124 - General requirements for dipping and coating operations
• 1910.125 - Additional requirements for dipping and coating operations that use flammable liquids or liquids with flashpoints greater than 199.4 *F (93 *C).
• 1910.126 - Additional requirements for special dipping and coating operations
• 1910 Subpart I - Authority for 1910 Subpart I
• 1910.132 - General requirements.
• 1910.133 - Eye and face protection.
• 1910.134 - Respiratory Protection.
• 1910.134 App A - Fit Testing Procedures (Mandatory).
• 1910.134 App B-1 - User Seal Check Procedures (Mandatory).
• 1910.134 App C - OSHA Respirator Medical Evaluation Questionnaire (Mandatory).
• 1910.134 App D - (Mandatory) Information for Employees Using Respirators When not Required Under Standard.
• 1910.135 - Head protection.
• 1910.136 - Foot protection.
• 1910.137 - Electrical Protective Equipment.
• 1910.138 - Hand Protection.
• 1910.140 - Personal fall protection systems.
• 1910.141 - Sanitation.
• 1910.142 - Temporary labor camps.
• 1910.144 - Safety color code for marking physical hazards.
• 1910.145 - Specifications for accident prevention signs and tags.
• 1910.146 - Permit-required confined spaces
• 1910.146 App C - Examples of Permit-required Confined Space Programs
• 1910.146 App D - Confined Space Pre-Entry Check List
• 1910.146 App E - Sewer System Entry.
• 1910.147 - The control of hazardous energy (lockout/tagout).
• 1910.151 - Medical services and first aid.
• 1910 Subpart L - Authority for 1910 Subpart L
• 1910.155 - Scope, application and definitions applicable to this subpart.
• 1910.156 - Fire brigades.
• 1910.157 - Portable fire extinguishers.
• 1910.158 - Standpipe and hose systems.
• 1910.159 - Automatic sprinkler systems.
• 1910.160 - Fixed extinguishing systems, general.
• 1910.161 - Fixed extinguishing systems, dry chemical.
• 1910.162 - Fixed extinguishing systems, gaseous agent.
• 1910.165 - Employee alarm systems.
• 1910.169 - Air receivers.
• 1910.176 - Handling materials - general.
• 1910.177 - Servicing multi-piece and single piece rim wheels.
• 1910.178 - Powered industrial trucks.
• 1910.179 - Overhead and gantry cranes.
• 1910.180 - Crawler locomotive and truck cranes.
• 1910.181 - Derricks.
• 1910.183 - Helicopters.
• 1910.184 - Slings.
• 1910 Subpart O - Authority for 1910 Subpart O
• 1910.211 - Definitions.
• 1910.212 - General requirements for all machines.
• 1910.213 - Woodworking machinery requirements.
• 1910.214 - Cooperage machinery. Reserved
• 1910.215 - Abrasive wheel machinery.
• 1910.216 - Mills and calenders in the rubber and plastics industries.
• 1910.217 - Mechanical power presses.
• 1910.218 - Forging machines.
• 1910.219 - Mechanical power-transmission apparatus.
• 1910.242 - Hand and portable powered tools and equipment, general.
• 1910.243 - Guarding of portable powered tools.
• 1910.244 - Other portable tools and equipment.
• 1910 Subpart Q - Authority for 1910 Subpart Q
• 1910.251 - Definitions.
• 1910.252 - General requirements.
• 1910.253 - Oxygen-fuel gas welding and cutting.
• 1910.254 - Arc welding and cutting.
• 1910.255 - Resistance welding.
• 1910.261 - Pulp, paper, and paperboard mills.
• 1910.262 - Textiles.
• 1910.263 - Bakery equipment.
• 1910.264 - Laundry machinery and operations.
• 1910.265 - Sawmills.
• 1910.266 - Logging operations.
• 1910.268 - Telecommunications.
• 1910.269 - Electric Power Generation, Transmission, and Distribution.
• 1910.269 App E - Protection From Flames and Electric Arcs.
• 1910.272 - Grain handling facilities.
• 1910.272 App A - Grain handling facilities
• 1910 Subpart S - Authority for 1910 Subpart S
• 1910.301 - Introduction.
• 1910.302 - Electric utilization systems.
• 1910.303 - General.
• 1910.304 - Wiring design and protection.
• 1910.305 - Wiring methods, components, and equipment for general use.
• 1910.307 - Hazardous (classified) locations.
• 1910.308 - Special systems.
• 1910.309 - Reserved
• 1910.331 - Scope
• 1910.332 - Training
• 1910.333 - Selection and use of work practices
• 1910.334 - Use of equipment.
• 1910.335 - Safeguards for personnel protection.
• 1910.399 - Definitions applicable to this subpart.
• 1910.401 - Scope and application.
• 1910.410 - Qualifications of dive team.
• 1910.423 - Post-dive procedures.
• 1910.430 - Equipment.
• 1910.502 - Healthcare.
• 1910.504 - Mini Respiratory Protection Program.
• 1910 Subpart Z - Authority for 1910 Subpart Z
• 1910.1000 - Air contaminants.
• 1910.1000 TABLE Z-1 - TABLE Z-1 Limits for Air Contaminants.
• 1910.1001 - Asbestos.
• 1910.1001 App A - OSHA Reference Method - Mandatory
• 1910.1002 - Coal tar pitch volatiles; interpretation of term.
• 1910.1003 - 13 Carcinogens (4-Nitrobiphenyl, etc.).
• 1910.1006 - Methyl chloromethyl ether.
• 1910.1008 - bis-Chloromethyl ether.
• 1910.1009 - beta-Naphthylamine.
• 1910.1010 - Benzidine.
• 1910.1016 - N-Nitrosodimethylamine.
• 1910.1017 - Vinyl chloride.
• 1910.1018 - Inorganic arsenic.
• 1910.1020 - Access to employee exposure and medical records.
• 1910.1024 - Beryllium.
• 1910.1025 - Lead.
• 1910.1025 App A - Substance data sheet for occupational exposure to lead
• 1910.1025 App B - Employee standard summary
• 1910.1026 - Chromium (VI)
• 1910.1027 - Cadmium
• 1910.1028 - Benzene.
• 1910.1028 App C - Medical surveillance guidelines for Benzene
• 1910.1029 - Coke oven emissions.
• 1910.1030 - Bloodborne pathogens.
• 1910.1043 - Cotton dust.
• 1910.1044 - 1,2-dibromo-3-chloropropane.
• 1910.1045 - Acrylonitrile.
• 1910.1047 - Ethylene oxide.
• 1910.1048 - Formaldehyde.
• 1910.1048 App A - Substance technical guidelines for formalin
• 1910.1050 - Methylenedianiline
• 1910.1051 - 1,3-Butadiene.
• 1910.1052 - Methylene Chloride.
• 1910.1053 - Respirable crystalline silica.
• 1910.1096 - Ionizing radiation.
• 1910.1200 - Hazard Communication.
• 1910.1200 App B - Physical Criteria (Mandatory)
• 1910.1200 App C - Allocation Of Label Elements (Mandatory)
• 1910.1200 App D - Safety Data Sheets (Mandatory)
• 1910.1201 - Retention of DOT markings, placards and labels.
• 1910.1450 - Occupational exposure to hazardous chemicals in laboratories.